Sheet turning device



2 Sheets-Sheet l Aug. 13, 1935. E. oLsoN SHEET TURNING DIEIVIICE Filed Jan. 2z, 1931.

S I G I I I IMINW I .4 1 f` N. 132.., Sv .N\ E l I I I .HnII I I I m IH I I /f/ Aug. 13, 1935. E QLSON SHEET-TURNING DEVICE Filed Jan. 25. 1931 2 Sheets-Sheet 2 Patented Aug. 13, 1935 A uru'rED` STATES e v `2,011,231 l v SHEET TURNING nEvIcE Edwin Olson, Wiclrliffe, Ohio, asslgnor, by mesne I assignments, to Dexter Folder Company, New York, N. Y., a corporation of New York (1934) f Application 4January 2s, 1931, serial No.' 5101661 4s claims. (01.2'11-7-52) This invention relates to improvements in sheet turning devices, that is to say, devices which are adapted to impart motion to a sheetl to turn it in its own plane through an angle of y90 as the sheet is traveling uponv a conveyor. The principaln utility for the device is in folding machines where it sometimes becomes desirable to control the direction of a fold. or =folds in this marmer. i

One of the objects of the invention ,therefore is the provision vof readily removablet and replaceable means for imparting quarter turns to sheets travclingV upon a conveyor or feed table of the diagonal driven roller type.

l5 Other objects and features of novelty will appear as I proceed with the description' of that embodiment of the invention which, forthe purposes of the present application, I have illustrated in the accompanying drawings, in which Figure l is a plan View of a buekleftype folding machine with roller feed tables in which my invention is. employed, and

Fig. 2 is a side elevational view of the machine looking in the direction of arrow-2, Fig. 1.

The machine illustrated in the drawings comprises a suitable frame Ill carrying a horizontal primary or other feed table I I in which are mounted diagonally arranged feed rollers I2 that are driven in any suitable manner.4 These rollers tend to direct sheets traveling over the table II toward the right, as viewed in Fig. 1, against a side, gui-de I3 which may or may not be adjustable. Preferably this guide carriesa series of balls Il which rest 4upon'the rollers I2 orupon sheets being fed-over the rollers, and serve to increase the traction of the rollers so as to impart to the sheets a more positive force.

At the delivery end of table I'I there is located .4u a fold section comprising a 'series of rolls. l5, I5,

I1, I8, I9 and 25 indicated by broken lines in .Fig..2. Buckle plates or grids (not shown) -are associated with these rolls for imparting bouckle folds in a manner well'known inthe art. As the .45 sheets leave this fold section they are delivered by the rolls I9, 2l) over a sheet deector 2| into feed rolls 22, 23, and from these latter rolls onto a cross feed table' 24. In vthecross feed table there are mounted a series of diagonally arranged 50 rollers 25, which are driven from beneath by the upper run of a belt 26 that is mounted-at its vends upon pulleys 21 and 28j. fIhe area ofcontact between the intermediate rollers 25 and the belt is increased by idler pulleys 29. 'lhe pulley 2,1 is

Il operatively connected with a shaft-3l which may be driven through bevel gearing 3l and 32 from a shaft 33 associated with the driving means for the rolls of the above described fold section. At the delivery end of this cross feed table there is a further or second fold section which is adapted A 6 to make folds at right angles to the folds made in the first described fold section. One roll only of this second fold section isshown in the drawings Above the cross feed table 24, and running 10"' lengthwise thereof, is a, sheet guide 35 which is preferably adjustable transvexlsely of the table, being mounted forthis purpose to slide upon two rods 8 and 9 which extend across the table betweensuccessive rollers 25 below the top level 15 thereof. The guide 35 carries a laterally extending metal plate 36 with an upwardly directededge which 4acts as aA deflector to guide sheets downwardly toward the table rollers. This plate is provided with a series of holes 31, one for each roller 25, these holes being adapted to receive balls 38 which rest upon the rollers or upon sheets of paper fed over the rollers. Their function is to depressthe sheets, and hold them firmly against z5 ,the driven rollers, whereby the traction of the latter is increased and they are enabled to transthis rod there is slidably mounted a bracket l2 85V which may be held in various positions of adjustment along the rod by means of a set screw 43 or the like. This bracket 42 carries a rod 44 which extends horizontally in' a direction parallel to the rollers 25. It supports slidably a yoke 45 4o which may be fastenedin desired positions of adjustment by a set screw 45. Rotatably mounted upon the rod Il within the yoke I5 is la bar f which carries fat its-free end a pin or pintle 41 upon which is rotatably mounted a circular 45 weight 48 that is adapted to rest upon one of the roners :s and b'rotated thereby. It w111 be apthat shown, if desired, although a short rod will generally be suilicient. E'

When the character of the Work to be done requires more parallel folds than can be properly l imparted in the rst described fold section, the

sheet turning device is so mounted upon the machine as to turn the sheets through an angle of 90 after they begin their travel over the cross feed table, whereby the second fold section, in-

l stead of imparting one or more folds at right angles to the folds imparted in the first fold section, merely adds one or more folds parallel to the folds made in the first described fold section. Of course it should be understood that the invention in its broader aspects is not'limited to use upon a cross feed table, but may be employed in folding machines generally wherever there is occasion to present asheet to a fold section, at'

in Fig. l at A. The rollers 25 beneath the sheet then impart driving force, starting the travel of the .sheet toward the right.,l As one corner of the sheet. comes beneath the wheel 48, that portion lof the roller 25 which is directly beneath the wheel is given better traction upon the sheet than 'can be exerted by the remainder of that roller or by any other roller then in contact with the sheet. Consequently thatl corner of the sheet moves more rapidly than any other part of the 0 sheet, that is to -say it has imparted to it a. turning movement in its own plane, one corner of the sheet engaging against lthe guide 35 in the meantime, as indicated in Fig. l. A position of the sheet while undergoing this turning movement is shown at B in Fig. 1. The turning movement is brought to a stop of course by the edge of the sheet impinging against the guide 35, andV the travel of the sheet from that point on, as well as its movement sidewse against th`e guide, is

the turning movement is resorted to inorder not to counteract the influence of the wheel I8 by increasing the traction of the rollers against the opposite side or end of the-sheet. When the turn- ,f' ing device is `not in use the balls 'may of course be employed in all of the holes 31.

In the foregoing description I have necessarily gone somewhat into detail in order to explain fully the particular embodiment of the invention herein illustrated, but I desire it to be understood Ythat `-any detailv disclosures herein' are not to be construed as amounting to limitations, except as 65' they may be included in the appended claims.

Having thus described my invention I claim: l

1. In a machine of the class described, a sheet conveyor comprising a series of driven feed rollers arranged in'parallel relation in a substantially horizontal plane, a sheet guide extending transversely of said-rollers and along which sheets are fed thereby, and means having turning relation with one of said rollers and cooperating therewith to impart a quarter turn to said sheets.

2. In a machine of the class described, a sheet which is then acting assisted by the balls 38, The omission of the relation, a sheet guide extending transversely of said rollers and along which sheets are fed thereby, and rotatable means associated with one of the rollers and cooperating therewith to impart a quarter turn to said sheets. l

e. In a machine of the class described, a sheet conveyor comprising a series of horizontal driven feed rollers extending diagonally of said machine in parallel relation, and means mounted above the conveyor and cooperating Ywith one of said rollers for imparting a quarter turn to sheets traveling over said conveyor, said means including an element for checking the travel of one corner'of the sheet.

5. In a machine of the class described, a sheet guide, a sheet conveyor comprising a plurality of driven rollers extending diagonally of the sheet guide, and means spaced laterally from said guide and cooperating Vwith said conveyor for imparting a quarter turn to sheets fed thereby.

6. In a machine ofthe class described, a side guide, a sheet conveyor comprising a plurality y of driven rollers extending diagonally of the side guide, and adjustable means adapted to be mounted in different positions to cooperate with 'one of said rollers for imparting a quarter turn to sheets fed by said conveyor.

7. In a machine of the class described, a side guide, a sheet conveyor comprising a plurality of driven feed rollers extending diagonally of the side guide, and means mounted adjacent a Ypoint on one of said rollers adapted to increase the traction thereof at that point in its length :only when acting on a sheet engaged with said guide, whereby sheets fed Yby the conveyor have a turning force imparted'to them.

8. In a machine of the class described, a side guide, a sheet conveyor comprising a plurality of driven feed Lrollers extending diagonally there'- of, and a rotatable device positioned opposite one of said feed rollers at a point along the length thereof and adapted to engage the` same and be rotated thereby, so that the tractiorof said feed roller is increased at that point only when acting von a sheet engaged with said guide and sheets fed by the conveyor thereby have a turning force imparted to them.- Y

9. In a machine of the class described, a sheet conveyor comprising a plurality of horizontal driven feed rollers extending diagonally thereof, a sheet guide extending lengthwise of the conveyor, and a rotatable weight having a circular periphery positioned above one of said feed rollers at al point spaced from said guide, said weight being adapted to rest upon the roller and be driven thereby or by the travel of a sheet thereover, whereby the traction of said roller is increased at that point only when acting on a sheet engaged with said guide and sheets traveling over the conveyor thereby have a. quarter turn imparted to them.

10. In a machine of the class described, a sheet riphery adapted to" `rest upon and be driven by one 'of said rollers or a sheet traveling thereover,

`d means f or mounting said weight at any oneof a plurality of points along the length of said roller, whereby sheets of different dimensions may be turned without varyingthe adjustment of the sheet guide.

`11. Ina machine of theclass described, a sheet and means for mounting said weight at any onel of a plurality of points along the length of any one of a series of said rollers, whereby sheets of different dimensions may be turned without varying the adjustment of the sheet guide or the path of delivery of sheets fed onto said conveyor.

12. In a machine of the class described, a feed table,` a cross feed table comprising a` series of' `driven rollers onto which sheets are vdelivered after leaving said first named feed table, a sheet guide running lengthwise of said cross feed table, said guide being adapted to stop the transverse movement of sheets delivered onto said crossv feed table as well as to guide them lengthwise thereover,. and means cooperating with one of 'said rollers and driven thereby for imparting a right angle turnto the sheets on said cross feed table, said guide carrying individually removable means adapted to 4cooperate withthe.several rollers for imparting traction to the sheets traveling over the cross feed table.

13. In a machine of the class described, a sheet guide,- a conveyor comprising a plurality of driven feed rollers extending diagonally thereof, and means rotatably cooperating with the conveyor for enabling the latter to impart a turn to a sheet fed thereby, so that a different edge of said sheet 4is presented to the guide than would be presented were said -turning means omitted.

- 14. In a machine of the class described, a sheet.

guide, a conveyor comprising a. plurality of driven feed rollersextending diagonally thereof, andy 'means rotatably cooperating with one of said rollersfor enabling vthe latterto impart a turn to a sheet fed bythe conveyor, so that a differ-- ent edge of said sheet is presented to the guide than would be presented were said turning means omitted.

15. In a machine of the class described, a sheet conveyor comprising a plurality of. horizontal,

driven feed rollers extending diagonally thereof,

a sheet guide for said conveyor, and means mounted above said conveyor and cooperating with one of said rollers for imparting a turn toa sheet traveling over'the conveyor, whereby a difw .ferent edge of said sheet is presented to the guide than would be presented were said turning means remitted. j",

. 16. In a machine of the class described, a sheet conveyorv comprising axseries of driven parallel rollers, means for guiding sheets that are conveyed one after`another by said rollers, and means for turning each of said sheets onsaid conveyor and comprising o'\ne of the rollers and a turning device rotatably associated therewith.

1'?. In a machine of the class described, a sheet f conveyor anda guide associated therewith, said conveyor comprising a ,series of parallel driven rollers and one of said rollers being prvidedadjacent thereto with rotatable sheet turning means.

f 18am a machine of the class described, a sheet feeding'table extending in a substantially horizontal plane and comprising a series of parallel rollers, means for guiding sheets thatare fed one after' another along said t yble, and means for turning each of said sheeis mounted device associated therewith.

19. In a machine of the class described, a sheet conveyor and a guide adapted for engagement by a sheet on the conveyor, the conveyor comprising 10 one or more driven rollers extending diagonally of said guide and said roller or rollers being provided adjacent thereto with means arranged in turning relation therew'th for turning said sheet thereon when it'engages the guide. 15

20. In a machine of the class described, a sheet guide, a sheet conveyor comprising a series of horizontally disposed parallel driven rollers, said guide being adapted for engagement by a sheet on the conveyor and one of said rollers being pro- 20 vided with means for turning said sheet in engagement with'the guide whereby a different edge ofthe sheet is presented to said guide than would be presented thereto were such means omitted.

21. In a machine of the class described, a sheet 25 guide, a sheet conveyor comprising a plurality of driven rollers, said guide being adapted for en-.

gagement by a sheet on the conveyor and one of said rollers being provided with means for turning said sheet in engagement with the guide 30 whereby'a different edge of the sheet is presented to said guide than Awould be presented thereto were said means omitted.

22. In a machine of the class described, a sheet conveyor, a sheet guide associated therewith, the 35 conveyor being provided with means for turning A a sheet thereon and said conveyor comprising one or more driven rollers arranged diagonally with respect to said guide. l

23. In a machine of the class described, a sheet 4o conveyor 'and a sheet guide associated therewith, said conveyor comprising -driven rollers arranged diagonally with respect to said guide and one of said rollers being provided with means for turning a sheet lon the conveyor'. 45

24. In a. machine of the class described, a sheet conveyor and a guide adapted for engagement by a sheet on the conveyor, the conveyor comprising a series of rollers arranged diagonally with respect tosaid guide and said conveyor being provided 50 with means for turning said-sheet thereon when it engages the guide. v

25. In a, machine of the class described, a sheet guide, and a conveyor'comprising a plurality of driven rollers extending diagonally of said guide 55 and adapted to feed a sheet therealong to a part of said machine, said conveyor being provided with means for turning said sheet thereon before it reaches said part. l

`26. In a machineof the class described, a sheet 60 guide, a. sheet conveyor comprising a plurality of driven rollers extending diagonally with respect driven rollers extending diagonallywith respect to the sheet guide, said-guide being adapted for engagement by a sheet on the conveyorand one of said rollers being'provlded with means for 75 t o n said table Vf5 -and comprising one of the rollers and a rotatably turning said sheet in engagement with the guide whereby a different edge of the sheet is presented to said guide than would be presented thereto were said means omitted.

28. In apparatus of the character described, a sheet conveyor including one or more driven rollers, and sheet registering or guiding means disposed diagonally with respect to said roller or rollers, said conveyor being provided with means for turning a sheet thereon.

29. Sheet feeding and turning means comprising a table having driven feed rollers extending diagonally thereof and a rotatable sheet engaging device, said table being provided with a sheet abutment and said rotatable device being disposed in feeding and turning relation with respect to said abutment and one of said rollers.

30. Sheet feeding and turning means comprising a table having driven feed rollers extending diagonally thereof and a rotatable sheet engaging device, said table being provided with a sheet guide and-said rotatable device being disposed in turning and feeding relation with the guide and one of said rollers to turn the sheet while it is in engagement with the latter and said guide. Y

31. In a machine of the class described, driven rollers for feeding a sheet, and stop means associated with the rollers and engaged bythe sheet when it is delivered thereon, one roller being provided with means for turning the sheet on said rollers after said sheet engages said stop means."

32. In a machine of the class described, a table over which a sheet is moved transversely and longitudinally, driven rollers for moving the sheet longitudinally of the table, and stop means engaged by the sheet when it is moved transversely of the'table, one of said, rollers being provided with means for turning the sheet on said table after said sheet engages said stop means.

33. In a machine of the class described, a sheet guide along which a Vsheet may be fed, driven rollers for feeding the sheet along the sheet guide,

and means cooperating with one roller to turn the sheet on said rollers while said sheet is in engagement with said sheet guide.

34. In a machine of the class described, a sheet guide along which a sheet may be fed, driven rollers for feeding the sheet along the sheet guide and extending diagonally thereof, and rotatable means cooperating with one roller to turn the sheet on said rollers while said sheet is in engagement with said sheet guide.

35. In aimachine of the class described, driven rollers for feeding a sheet, .stop means associated with the rollers and engaged by the sheet when it is delivered thereon, and means for turning the sheet on the rollers after said sheet engages said stop means. j

36. In a machine of the class described, a set of driven rollers for feeding a sheet, stop means adjacent one side of the set of rollers, means adjacent the opposite side of the set of rollers for delivering the sheet aross the rollers into engagement with said stop means, and means for turning the sheet on the rollers after said sheet engages the said stop means.

37. In a machine of the class described, a guide alongwhich a sheet may be fed, driven rollers for feeding the sheet along the guide, means for turning the sheet 0n the rollers while it engages said guide, and means cooperating with one or more of said rollers to impart traction to the turned sheet.

38. In a machine of the class described, a guide along which a sheet may be fed, driven rollers for feeding the sheet along the guide and extending diagonally thereof, meansvfor turning the sheet on the rollers, and means cooperating with one or more of said rollers to engage the turnedv sheet with said guide.

39. In a machine of the class described, a set of driven rollers for feeding a sheet, a sheet guide adjacent one side of the set of rollers, means adjacent the opposite side of the set of rollers for delivering the sheet thereacross against the sheet guide, means for turning the sheet on the rollers after it' engages the sheet guide, and means cooperating with one or more of said rollers to impart traction to the turned sheet.

40., In a machine of the class described, a set of driven rollers for feeding a sheet, a sheet guide adjacent one side of the set of rollers and toward which the latter extend diagonally, means adjacent the opposite side of the set of rollers for delivering the sheet thereacross against the sheet guide, means cooperating with one roller to turn the sheet after it is delivered as aforesaid, and means cooperating with one or more of the remaining rollers to engage the turned sheet with the guide and imparttraction to said sheet.

41. In a machine of the class described, a table along which a sheet may be fed, a sheet guide extending longitudinally of the table and initially engaged by the sheet through movement thereof transversely of the table, driven rollers for feeding the sheet longitudinally of the table, means cooperating with one roller to turn the sheet on the table after said sheet initially engages said sheet guide and starts to move along the latter and the table, and means associated with the l* sheet guide spaced longitudinally from the por# which the sheet is delivered on the table trans-A versely thereof, driven rollers forfeeding the sheet longitudinally of the table and extending diagonally of the latter and the sheet guide, a rotatable device cooperating with one roller to turn the sheet on the table after the sheet is delivered as aforesaid, and a plurality of members freely mounted in the sheet guide spaced longitudinally from theportion thereof which is initially engaged by the sheet and in the line of travel of the sheet from said portion, said members rotatably cooperating with certain of the remaining rollers to engage the turned sheet with said guide.

43. In a machine of the character described, a. conveyor for feeding a sheet to a part of said machine and comprising a series of driven parallel machine.

. EDWIN oLsoN. 

